<?php function odd($var) { // returns whether the input integer is odd return $var & 1; } function even($var) { // returns whether the input integer is even return !($var & 1); } $str = "1-a,2-b,3-c"; $temp = preg_split( "/(-|,)/", $str); $result =array_combine(array_filter($temp, "even", ARRAY_FILTER_USE_KEY),array_filter($temp, "odd",ARRAY_FILTER_USE_KEY)); print_r($result);
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